Aries is a constellation, a perceived arrangement of stars in the night sky. The constellation Aries is merely a PATTERN; it isn't anything real. The stars that make up the pattern are all in the Milky Way galaxy.
Aries Stars Constellation is a Northern constellation located between Pisces the Fish and Taurus the Bull. Aries is also bordered by Cetus the Whale (or Sea-Monster), Perseus the Hero, Triangulum the Triangle and Andromeda the Chained Princess.
Hercules is mainly a Northern Hemisphere constellation, but it can easily be seen South of the equator. In the North it's best seen in summer. In the Southern Hemisphere it is mainly a winter constellation.